All universal moral principles are idle fancies.

All, all is theft, all is unceasing and rigorous competition in nature; the desire to make off with the substance of others is the foremost - the most legitimate - passion nature has bred into us and, without doubt, the most agreeable one.

I've already told you: the only way to a woman's heart is along the path of torment. I know none other as sure.

Any enjoyment is weakened when shared.

The reasoning man who scorns the prejudices of simpletons necessarily becomes the enemy of simpletons; he must expect as much, and laugh at the inevitable.

Love Is Stronger Than Pride

It has, moreover, been proven that horror, nastiness, and the frightful are what give pleasure when one fornicates. Beauty is a simple thing; ugliness is the exceptional thing. And fiery imaginations, no doubt, always prefer the extraordinary thing to the simple thing.